Sierra Wireless DART 200 CDPD Modem Connection, sequence control, and flow control functions

DART 200 CDPD Modem User’s Guide Glossary

M-ES

MDBS

Mobile End System

Refers to the DART as a component in the CDPD network

Mobile Data Base Station

MDIS

MDLP

Cellular tower serving a specific geographical area. Communicates by radio with the DART and by landline, microwave, etc. with the MDIS. See also, cell.

Mobile Data Intermediate Station

Computer device that serves as the control point for CDPD in a specific area. Accepts information from MDBS and processes and sends the information by routers to the appropriate F-ES.

Mobile Data Link Protocol

	The link layer protocol used in CDPD. Operates between
	the SNDCP and MAC layers. Provides framing, data link
	connection, sequence control, and flow control functions.
MDT	Mobile Data Terminal
	An alternate name for a mobile MAS.
MNRP	Mobile Network Registration Protocol
MTSO	Mobile Telephone Switching Office
	Some carriers locate their MDIS at the MTSO
	(pronounced mitso).
NEI	Network Entity Identifier

NEMA

NSAP

The official name for the IP Address. A 32-bit identifier normally expressed in dotted decimal (162.147.11.49). The NEI is a component of the NSAP.

National Electrical Manufacturer’s Association

A standards setting body.

Network Service Access Point

	The definition of the point where the service user and
	service provider systems meet. The NEI is accessed
	through the NSAP by end-users.
OPR	Abbreviation for the Operate light on the DART

PAD PIN

Indicates power on status (slow blink), and relative signal strength (faster blink to solid on).

Packet Assembler - Disassembler

Personal Identification Number

Part of the optional CDPD security system.

PN1197-00 Revision 1.0 Glossary-5